'Take Heed' in the Bible

And did he not make one, although he had the residue of the Spirit? And why one? He sought a godly seed. Therefore take heed to your spirit, and let none deal treacherously against the wife of his youth.

For I hate putting away, says LORD, the God of Israel, and him who covers his garment with violence, says LORD of hosts. Therefore take heed to your spirit, that ye deal not treacherously.